package com.merlin.security.browser.authentication;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.codehaus.jackson.map.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import com.merlin.security.browser.support.SimpleResponse;
import com.merlin.security.core.properties.LoginType;
import com.merlin.security.core.properties.SecurityProperties;

/**
 * 自定义失败处理器
 * @author merlin
 *
 */
@Component("merlinAuthenticationFailureHandler")
public class MerlinAuthenticationFailureHandler extends SimpleUrlAuthenticationFailureHandler{

	private Logger logger = LoggerFactory.getLogger(getClass());
	
	@Autowired
	private ObjectMapper objectMapper;  //将响应对象转换成json对象
	
	@Autowired
	private SecurityProperties securityProperties;
	
	@Override
	public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
			AuthenticationException exception) throws IOException, ServletException {
		if(LoginType.JSON.equals(securityProperties.getBrowser().getLoginType())) { //如果是JSON格式
			logger.info("登录失败");
			response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value()); //设置返回错误码
			response.setContentType("application/json;chartset=UTF-8");
			response.getWriter().write(objectMapper.writeValueAsString(new SimpleResponse(exception.getMessage()))); //只返回错误的消息
		} else { //否则返回父类默认的失败处理的Html
			super.onAuthenticationFailure(request, response, exception);
		}
	}
}
